On behalf of the Chinese Society for Geodesy, Photogrammetry and Cartography (CSGPC) and the Local Organizing Committee of IAG Scientific Assembly 2021, we would like to invite you to attend the Scientific Assembly of the International Association of Geodesy (IAG) to be held in Beijing, China on June 28–July 2, 2021.

Due to the ongoing COVID-19 pandemic, the Assembly will be organized as a virtual conference. However, the Assembly is still a unique opportunity for participants from around the world to share their science, vision and culture. We will make use of all necessary resources to ensure the success of the conference.

The theme of the Assembly is "Geodesy for a Sustainable Earth". A number of scientific symposiums are planned, which covers the reference frame, earth gravity field, earth rotation & geodynamics, navigation & positioning, geodetic observation system, marine geodesy and quantum technology for geodesy, etc. We are confident that the Assembly will be helpful to enhance scientific exchanges, develop friendships for our geodesy community and promote the development of geodesy and earth science.

On behalf of the Local Organizing Committee of IAG 2021, we sincerely welcome you to join us.

Chairs of the Local Organizing Committee of IAG 2021